• Title, Summary, Keyword: interactive data service

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Development of Interactive Data Broadcasting System Compliant with ATSC Standards

  • Jeong, Jong-Myeon;Lee, Yong-Ju;Park, Min-Sik;Choi, Ji-Hoon;Choi, Jin-Soo;Kim, Jin-Woong
    • ETRI Journal
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    • v.26 no.2
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    • pp.149-160
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    • 2004
  • In this paper, we present an interactive data broadcasting system compliant with the Advanced Television Systems Committee (ATSC) standards. The proposed system provides users not only with various data broadcasting services but also remote interactive services. For various data broadcasting services, we have adopted a synchronized data injector that calculates the transmission time of synchronized data accurately and multiplexes synchronized data with the data of an MPEG-2 audio-visual program according to the calculated transmission time. To support remote interactive services, we designed and implemented a return channel server connected on a bi-directional interaction channel. Test results show that the proposed system provides both an asynchronous and synchronized data broadcasting service and remote interactive service appropriately.

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A Study on Characteristics of the Type of Interactive Broadcast Program in Korea (국내 양방향 방송 프로그램 유형 특징에 관한 연구)

  • PARK, JIN SIK;KIM, SUNG HOON
    • The Journal of the Convergence on Culture Technology
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    • v.5 no.4
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    • pp.209-215
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    • 2019
  • The purpose of this study is to suggest the development of interactive services and technologies in the media industry. Through the analysis of domestic two-way broadcasting contents service, this study analyzed platform and services type according to service type of terrestrial broadcasting, SO operator and Telco. Also, by identifying the characteristics of interactive programs(open, interactive, personalized, stereoscopic), this study propose important convergence possibilities of the future providers and development plans through supporting technologies and services for each characteristic. In the case of terrestrial broadcasters, ARS, web sites and mobile apps were mostly provided in both directions, and SO and satellite broadcasting operators were found to provide diversity in interactive service operation using data domain. In the case of IPTV companies, most of them provide interactive services with additional video or information service through adjustment button or app, and cable TV operators had more adjustment data broadcasting than exclusive use data broadcasts. Therefore, domestic interactive broadcasting service type needs convergence type of revenue model needs and needs to be converted into new competitive interactive broadcasting program service environment.

New Interactive TV Service Model based on the MPEG-4 System

  • Kim, Jongho;Jechang Jeong
    • Proceedings of the IEEK Conference
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    • pp.125-128
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    • 2002
  • In this paper, a new interactive TV service model is proposed. The MPEG-4 system is specified for composing and managing various object streams including user interactions. The data broadcasting model supporting user interactions is designed using MPEG-4 system in our proposal. We evaluate possibility of proposed service model using simulation player. This player supports MPEG-2 TS which contains MPEG-2 video and AC-3 audio streams as a main service and MPEC-4 system data as interactive services as well as user specific EPG information, and XML data, etc as supplemetary services. The player also supports a multi-channel environment. The synchronization between audio and visual data is achieved by DTS and PTS in TS.

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T-DMB Hybrid Data Service Part 1: Hybrid BIFS Technology (T-DMB 하이브리드 데이터 서비스 Part 1: 하이브리드 BIFS 기술)

  • Lim, Young-Kwon;Kim, Kyu-Heon;Jeong, Je-Chang
    • Journal of Broadcast Engineering
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    • v.16 no.2
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    • pp.350-359
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    • 2011
  • Fast developments of broadcasting technologies since 1990s enabled not only High Definition Television service providing high quality audiovisual contents at home but also mobile broadcasting service providing audiovisual contents to high speed moving vehicle. Terrestrial Digital Multimedia Broadcasting (T-DMB) is one of the technologies developed for mobile broadcasting service, which has been successfully commercialized. One of the major technical breakthroughs achieved by T-DMB in addition to robust vehicular reception is an adoption of framework based on MPEG-4 System. It naturally enables integrated interactive data services by using Binary Format for Scene (BIFS) technology for scene description and representation of graphics object and Object Descriptor Framework representing multimedia service components as objects. T-DMB interactive data service has two fundamental limitations. Firstly, graphic data for interactive service should be always overlaid on top of a video not to be rendered out of it. Secondly, data for interactive service is only received by broadcasting channel. These limitations were considered as general in broadcasting systems. However, they are being considered as hard limitations for personalized data services using location information and user characteristics which are becoming widely used for data services of smart devices in these days. In this paper, the architecture of T-DMB hybrid data service is proposed which is utilizing broadcasting network, wireless internet and local storage for delivering BIFS data to overcome these limitations. This paper also presents hybrid BIFS technology to implement T-DMB hybrid data service while maintaining backward compatibility with legacy T-DMB players.

Interactive Quality in Ethiopian Telecom's Service Encounters: A Dyadic Perspective

  • Potluri, Rajasekhara Mouly;Yigezu, Yoseph;Ansari, Rizwana;Khan, Saqib Rasool
    • The Journal of Industrial Distribution & Business
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    • v.6 no.1
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    • pp.27-35
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    • 2015
  • Purpose - This research primarily assesses interactive quality in the service encounters of Ethiopian Telecom from the customer and contact personnel perspectives. Research design, data, and methodology - After reviewing the literature on service encounters and interactive quality, two separate questionnaires and structured personal interviews were conducted to collect the opinions of 400 customers and 100 employees of Ethiopian Telecom. The researchers used convenience sampling; the responses, measured on a five-point Likert-type scale, were analyzed through chi-square tests conducted on SPSS 17.0. Results - Regarding the outcome expected by customers, encounter effectiveness is very low. Regarding accessibility and materiality, the corporation's personnel are freely accessible, relatively well-dressed, and have access to sophisticated office equipment and physical facilities. Finally, with regard to agent satisfaction, the telecom's contact employees are shown to gain little professional satisfaction from service encounters. Conclusion - The study clearly presents the areas in which interactive quality strongly affects both telecom customers and employees; this will help the corporation take corrective action. This is of utmost contemporary importance for both practitioners and researchers.

Development of Terrestrial DMB Interactive Data Broadcasting System based on Middleware (미들웨어 기반의 지상파 DMB 데이터 방송 시스템 개발)

  • Lee, Gwang-Soon;Kim, Kwang-Yong;Lee, Soo-In
    • Journal of Korea Multimedia Society
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    • v.11 no.4
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    • pp.481-491
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    • 2008
  • As the T-DMB (Terrestrial Digital Multimedia Broadcasting) has been actively launched, all the service providers are focusing on finding a new business model using a variety of data services as well as video service. The middleware technology for data broadcasting service, which was presented due to such necessity, known as DMB MATE (Mobile Application Terminal Environment), provides a running environment of the applications and APIs so that the various data applications can support high-level functionalities for the interactive data service. In this paper, in order to effectively provide the data service under restricted channel environment of T-DMB, we introduce a service technology and an interactive data broadcasting system using the DMB MATE, specifically proposing a design method of T-DMB MATE receiver capable of the presented DMB MATE service. Finally, the performance of developed system is confirmed through the T-DMB data broadcasting experiment under a variety of conditions.

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Development of BIFS Contents Authoring System for T-DMB Interactive Data Service (지상파 DMB 대화형 서비스를 위한 BIFS 콘텐츠 저작 시스템 구현)

  • Ah Sang-Woo;Cha Ji-Hun;Moon Kyung-Ae;Cheong Won-Sik
    • Journal of Broadcast Engineering
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    • v.11 no.3
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    • pp.263-275
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    • 2006
  • This paper introduces an interactive contents authoring system which can easily and conveniently produce interactive contents for the Terrestrial Digital Multimedia Broadcasting (T-DMB). For interactive broadcasting service, T-DMB adopted MPEG-4 BIFS technology. In order to the interactive service becomes flourishing on the market, various types of interactive contents should be well provided prior to the service. In MPEG-4 BIFS, broadcasting contents are described by the combination of a large number of nodes, routes and descriptors. In order to provide interactive data services through the T-DMB network, it is essential to have an interactive contents authoring system which allows contents authors to compose interactive contents easily and conveniently even if they lack any background on MPEG-4 BIFS technology. The introduced authoring system provides powerful graphical user Interface and produces interactive broadcasting contents in the forms of binary and textual format. Therefore, the BIFS contents authoring system presented in this paper would vastly contribute to the flourishing interactive service.

A Study on Asymmetrical Interactive e-Book Publication Composition by Using DTV Broadcasting (비대칭 쌍방향 전자 책 출판 TV전송 시스템 구성에 관한 연구)

  • 강명구;진용옥
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.201-208
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    • 2001
  • In the 21 st century, broadcasting, communication, and computer have been integrated due to the development of digital technology. Accordingly, to overcome the limit of respective communication media and to maintain them, their independent area shall not be classified. This study is to examine the future environment of digital TV broadcasting, to analyze customizing type service and interactive type TV technology, and to make asymmetric interactive digital TV publication broadcasting system, which is TV broadcasting in the next generation to treat visual image, sound, and various data all together by harmonizing broadcasting and communication like ISDB(Integrate Service Digital Broadcasting). In addition, to develop service on publication broadcasting with high quality, this study is tn propose to develop relative devices for TV/PC reception to realize a new communication type TV publication broadcasting, by analyzing technology for producing, sending, transmitting, receiving, and saving to apply to customizing type interactive system and by examining its application.

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Visual-Attention-Aware Progressive RoI Trick Mode Streaming in Interactive Panoramic Video Service

  • Seok, Joo Myoung;Lee, Yonghun
    • ETRI Journal
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    • v.36 no.2
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    • pp.253-263
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    • 2014
  • In the near future, traditional narrow and fixed viewpoint video services will be replaced by high-quality panorama video services. This paper proposes a visual-attention-aware progressive region of interest (RoI) trick mode streaming service (VA-PRTS) that prioritizes video data to transmit according to the visual attention and transmits prioritized video data progressively. VA-PRTS enables the receiver to speed up the time to display without degrading the perceptual quality. For the proposed VA-PRTS, this paper defines a cutoff visual attention metric algorithm to determine the quality of the encoded video slice based on the capability of visual attention and the progressive streaming method based on the priority of RoI video data. Compared to conventional methods, VA-PRTS increases the bitrate saving by over 57% and decreases the interactive delay by over 66%, while maintaining a level of perceptual video quality. The experiment results show that the proposed VA-PRTS improves the quality of the viewer experience for interactive panoramic video streaming services. The development results show that the VA-PRTS has highly practical real-field feasibility.

A Study on Buffer Control Method of Set-top Box in Interactive Video-on-Demand Service (대화식 주문형 비디오 서비스에서의 셋톱박스 버퍼 제어 방안 연구)

  • 신준호;김용득
    • Proceedings of the IEEK Conference
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    • pp.1041-1044
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    • 1999
  • This paper propose a solution to resolve data overflow or leakage when a subscriber receive data to service provider. The set-top box can communicate with a service provider and can inform the service provider its data overflow or leakage. When service provider received this control signal, it changes data transmit rate and transmits data with changed rate. The buffer of set-top box is important because incoming data from a service provider are stored by it.

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